Quetie NPM | npm.io

Features

Tiny: ~360 bytes minzipped!
Fast: amortized O(1) time complexity for all operations
Tree Shakeable: use Queue if you don't need a full Deque!

Install

$ npm i quetie

Usage

import { Deque, Queue } from 'quetie'

const queue = new Queue()

queue.push(1)
queue.push(2)
queue.push(3)

console.log(queue.size)
//=> 3

console.log(queue.at(0))
console.log(queue.at(1))
console.log(queue.at(2))
console.log(queue.at(3))
console.log(queue.at(-1))
//=> 1
//=> 2
//=> 3
//=> 1
//=> 3

console.log([...queue])
//=> [ 1, 2, 3 ]

console.log(queue.shift())
console.log(queue.shift())
console.log(queue.shift())
console.log(queue.shift())
//=> 1
//=> 2
//=> 3
//=> undefined

const deque = new Deque()

deque.push(1)
deque.push(2)
deque.push(3)
deque.unshift(0)

console.log(deque.size)
//=> 4

console.log(deque.at(0))
console.log(deque.at(1))
console.log(deque.at(2))
console.log(deque.at(3))
console.log(deque.at(-1))
//=> 0
//=> 1
//=> 2
//=> 3
//=> 3

console.log([...deque])
//=> [ 0, 1, 2, 3 ]

console.log(deque.pop())
console.log(deque.shift())
console.log(deque.shift())
console.log(deque.pop())
console.log(deque.pop())
//=> 3
//=> 0
//=> 1
//=> 2
//=> undefined

See the type definitions for more documentation.